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Eid, H., Abou ELAtta, M., Eidaroos, N., Farg Allah, N. (2019). Bacteriological Studies on Flavobacterium columnare in Fish. Suez Canal Veterinary Medical Journal. SCVMJ, 24(1), 37-43. doi: 10.21608/scvmj.2019.59192
Hamza Eid; Mohamed Abou ELAtta; Nada Eidaroos; Nagwa Farg Allah. "Bacteriological Studies on Flavobacterium columnare in Fish". Suez Canal Veterinary Medical Journal. SCVMJ, 24, 1, 2019, 37-43. doi: 10.21608/scvmj.2019.59192
Eid, H., Abou ELAtta, M., Eidaroos, N., Farg Allah, N. (2019). 'Bacteriological Studies on Flavobacterium columnare in Fish', Suez Canal Veterinary Medical Journal. SCVMJ, 24(1), pp. 37-43. doi: 10.21608/scvmj.2019.59192
Eid, H., Abou ELAtta, M., Eidaroos, N., Farg Allah, N. Bacteriological Studies on Flavobacterium columnare in Fish. Suez Canal Veterinary Medical Journal. SCVMJ, 2019; 24(1): 37-43. doi: 10.21608/scvmj.2019.59192

Bacteriological Studies on Flavobacterium columnare in Fish

Article 4, Volume 24, Issue 1, June 2019, Page 37-43  XML PDF (735.9 K)
Document Type: Original Article
DOI: 10.21608/scvmj.2019.59192
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Authors
Hamza Eid1; Mohamed Abou ELAtta2; Nada Eidaroos* 3; Nagwa Farg Allah* 2
1Bacteriology, Mycology and Immunology Deptartment ,Faculty of Vet.Med., Suez Canal University
2Central Laboratory for Aquaculture Research. Abbassa, Abou Hammad, Sharkia
3Bacteriology, Immunology and Mycology Department, Fac. Vet. Med. Suez Canal University
Abstract
Columnaris is one of the oldest known fish diseases caused by Flavobacterium columnare. The wide spreading of the causative agent in freshwater environments and the susceptibility of fish to be attacked by it after mechanical and/or environmental factors makes F. columnare among the most prevalent pathogens in cultured, ornamental, and wild fish populations. One hundred fishes of tilapia (Oreochromis niloticus) were collected randomly from ponds of Central Laboratory for Aquaculture Research of Abbassa, Abou Hammad, Sharkia, Egypt for Flavobacterium columnare isolation. F. columnare was isolated from (150) out of the (350) examined samples. The bacteriological examination revealed that the prevalence of F. columnare was (42.8%) in Oreochromis niloticus. The highest prevalence of F columnare was in gills (33.3%) followed by skin (30%) then fins (24.6%) and kidney (12%). These isolates were further characterized by PCR that revealed positive result for 16S RNA gene with specific amplicons size 675bp. The result of antimicrobial sensitivity testing of the isolates revealed that doxycycline, erythromycin, tetracycline, trimethoprim, nalidixic acid and streptomycin were the most effective drugs against F.columnare.
Keywords
Bacteriological Studies; Flavobacterium columnare; fish
Main Subjects
Bacteriology, Immunology and Mycology
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